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Mechanical Seal
Repairs
Gasket Cutting
Die Formed Packing
Die Formed Grafoil
Spiral Wound Gaskets
Custom Stitched Tadpole
CNC Machined PTFE
Molded PTFE
Vulcanized O-Rings |
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High Temp Metal Bellows Seals
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A narrow cross sectional design allows use in a wide range of pumps without pump modification
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No Springs to clog !!!!!
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Metal Bellows seals seal with Flexible Graphite instead of a rubber boot or o-ring
allowing it to be used applications over 500 degrees F.
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High strength bellows ideal for demanding applications
| Seal Dash Number |
A(in.) 0.000 -0.002 |
A(mm) 0.000 -0.051 |
B(inch) REF |
C(inch) REF |
D(inch) REF |
E(inch) ±.76 |
F(inch) REF |
G(inch) REF |
| -16 |
1" |
25.4 |
1.72" |
1.66" |
2.11" |
1.44" |
1.24" |
.188" |
| -18 |
1.125" |
28.58 |
1.85" |
1.69" |
2.13" |
1.56" |
1.36" |
188" |
| -20 |
1.25" |
31.75 |
1.98" |
1.72" |
2.16" |
1.72" |
1.52" |
188" |
| -22 |
1.375" |
34.93 |
2.11" |
1.72" |
2.16" |
1.8" |
1.64" |
188" |
| -24 |
1.5" |
38.1 |
2.24" |
1.72" |
2.16" |
1.97" |
1.72" |
188" |
| -26 |
1.625" |
41.28 |
2.36" |
1.72" |
2.16" |
2.09" |
1.84" |
188" |
| -28 |
1.75" |
44.45 |
2.49" |
1.75" |
2.2" |
2.22" |
1.97" |
188" |
| -30 |
1.875" |
47.63 |
2.61" |
1.75" |
2.2" |
2.34" |
2.09" |
188" |
| -32 |
2" |
50.8 |
2.74" |
1.78" |
2.23" |
2.47" |
2.22" |
188" |
| -34 |
2.125" |
53.98 |
2.87" |
1.81" |
2.26" |
2.59" |
2.34" |
188" |
| -36 |
2.25" |
57.15 |
2.99" |
1.81" |
2.26" |
2.72" |
2.47" |
188" |
| -38 |
2.375" |
60.33 |
3.11" |
1.84" |
2.29" |
2.85" |
2.60" |
188" |
| -40 |
2.5" |
63.5 |
3.24" |
1.88" |
2.38" |
3.1" |
2.8" |
188" |
| -42 |
2.625" |
66.68 |
3.39" |
1.91" |
2.41" |
3.22" |
2.92" |
188" |
| -44 |
2.75" |
69.85 |
3.51" |
1.94" |
2.45" |
3.35" |
3.05" |
188" |
| -46 |
2.875" |
73.03 |
3.7" |
2.03" |
2.54" |
3.5" |
3.2" |
188" |
| -48 |
3" |
76.2 |
3.82" |
2.03" |
2.54" |
3.63" |
3.33" |
188" |
| -50 |
3.125" |
79.38 |
4.01" |
2.03" |
2.57" |
3.77" |
3.44" |
188" |
| -52 |
3.25" |
82.55 |
4.13" |
2.03" |
2.57" |
3.9" |
3.57" |
188" |
| -54 |
3.375" |
85.73 |
4.26" |
2.03" |
2.57" |
4.02" |
3.69" |
188" |
| -56 |
3.5" |
88.9 |
4.38" |
2.03" |
2.57" |
4.15" |
3.82" |
188" |
| -58 |
3.625" |
92.08 |
4.51" |
2.03" |
2.57" |
4.27" |
3.94" |
188" |
| -60 |
3.75" |
95.25 |
4.64" |
2.03" |
2.57" |
4.4" |
4.07" |
188" |
| -62 |
3.875" |
98.43 |
4.76" |
2.03" |
2.57" |
4.52" |
4.19" |
188" |
| -64 |
4" |
101.6 |
4.89" |
2.03" |
2.57" |
4.65" |
4.32" |
188" |
High temperature metal bellows seals are possible through the use of
flexible graphite or Grafoil® flexible graphite. We offer both. Besides
being built with a more durable double ply, flexible graphite is used in
place of an o-ring. Because flexible graphite by nature does not have
elastomeric recovery a back collar is employed which is tightened to cause
radial compression on the pump shaft, sealing it tight.
The temperature range metal bellows seals is always limited to the
ability of the secondary elements. Flexible graphite is generally good
to 850 F. However if the atmosphere the seal is running in contains
less oxygen than breathable air, the point of carbonization is
raised. In steam flexible graphite and hence metal bellows seals
with flexible graphite are good for 1200 F.
A basic characteristic of flexible graphite is it's 0 - 14 ph
range. If you require an extra durable chemical seal the seal designed
for high temperatures is ideal.
We can offer welded metal seals that will last longer in the field
resulting in less pump down time, less loss production and fewer labor
costs, saving you incalculably.
Manufactured under an
ISO-90001 system, maintaining the quality of the materials, and
workmanship.
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